forked from boostorg/smart_ptr
97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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// boost/detail/atomic_count.hpp - thread/SMP safe reference counter
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//
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// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
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// Copyright (c) 2013 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// typedef <implementation-defined> boost::detail::atomic_count;
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//
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// atomic_count a(n);
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//
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// (n is convertible to long)
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//
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// Effects: Constructs an atomic_count with an initial value of n
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//
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// a;
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//
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// Returns: (long) the current value of a
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// Memory Ordering: acquire
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//
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// ++a;
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//
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// Effects: Atomically increments the value of a
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// Returns: (long) the new value of a
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// Memory Ordering: acquire/release
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//
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// --a;
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//
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// Effects: Atomically decrements the value of a
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// Returns: (long) the new value of a
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// Memory Ordering: acquire/release
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//
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#include <boost/config.hpp>
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#include <boost/smart_ptr/detail/sp_has_sync.hpp>
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#if defined( BOOST_AC_DISABLE_THREADS )
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# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
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#elif defined( BOOST_AC_USE_STD_ATOMIC )
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# include <boost/smart_ptr/detail/atomic_count_std_atomic.hpp>
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#elif defined( BOOST_AC_USE_SPINLOCK )
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# include <boost/smart_ptr/detail/atomic_count_spin.hpp>
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#elif defined( BOOST_AC_USE_PTHREADS )
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# include <boost/smart_ptr/detail/atomic_count_pt.hpp>
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#elif defined( BOOST_SP_DISABLE_THREADS )
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# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
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#elif defined( BOOST_SP_USE_STD_ATOMIC )
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# include <boost/smart_ptr/detail/atomic_count_std_atomic.hpp>
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#elif defined( BOOST_SP_USE_SPINLOCK )
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# include <boost/smart_ptr/detail/atomic_count_spin.hpp>
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#elif defined( BOOST_SP_USE_PTHREADS )
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# include <boost/smart_ptr/detail/atomic_count_pt.hpp>
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#elif defined( BOOST_DISABLE_THREADS ) && !defined( BOOST_SP_ENABLE_THREADS ) && !defined( BOOST_DISABLE_WIN32 )
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# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
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#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) ) && !defined( __PATHSCALE__ )
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# include <boost/smart_ptr/detail/atomic_count_gcc_x86.hpp>
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#elif defined( BOOST_SP_HAS_SYNC )
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# include <boost/smart_ptr/detail/atomic_count_sync.hpp>
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#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
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# include <boost/smart_ptr/detail/atomic_count_win32.hpp>
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#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
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# include <boost/smart_ptr/detail/atomic_count_gcc.hpp>
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#elif !defined( BOOST_HAS_THREADS )
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# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
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#else
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# include <boost/smart_ptr/detail/atomic_count_spin.hpp>
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#endif
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
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